Write the Lewis dot structure of `CO_(3)^(2-)` ion .

Explanation

Solution . Step .1 . Total number of valence electons of ` CO_(3)= 4 + 3 xx6 = 22 (""_(6)C= 2 ,4,""_(8)O= 2, 6)`
Step 2 . Total number of electrons to be distributed in ` CO_(3)""^(2-) = 22 + 2 ` (for two units - ve charge) = 24
Step 3. The skeletal sturcture of ` CO_(2)` is
`O overset (O) C O`
Step 4. Putting one shared pair of electrons between each C and O and completing the octets of oxygen, we have

In this structure, octet of C is not complete. Hence, multiple bonding is required between C and one of the
O- atoms, Drawing a double bond between C and one O-atom serves the purpose
`(PR_CHE_01_XI_C04_SLV_004_S02)`